Before weapons, cities, or organized defense, early humans lived in a world where predators dominated the landscape. Large ...

Sabre-toothed tigers were among the most dangerous predators early humans ever faced. Their long canine teeth and powerful bodies were designed for killing large prey with precision and speed. This ...

It's easy to take for granted that with the flick of a lighter or the turn of a furnace knob, modern humans can conjure flames — cooking food, lighting candles or warming homes. For much of our ...